TSQLTransaction

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TSQLTransaction is a non-visual component that intermediates between a database connection such as TSQLConnection and a TDataSet-derivative like a TSQLQuery.

A TSQLTransaction is used to guard a series of queries such that either all of the queries are executed by a Commit() or none using Rollback().

 SQLTransaction1.Database := SQLConnection1;
 SQLQuery1.Transaction := SQLTransaction1;

Freepascal Documentation

• TSQLTransaction doc
• TDataSet